Cameron Pass Engelmann Spruce, Colorado - CO633 Additional information Christof Bigler Thomas T. Veblen Purpose of Collection: Master chronology for study of drought effects on tree mortality and tree growth Detrend method: Negative exponential or linear regression of any slope, ARSTAN: Smoothing spline with 50 cutoff Cores are stored at: ETH Tree-Ring Laboratory Forest Ecology Institute of Terrestrial Ecosystems ETH Zurich CHN G 61 CH-8092 Zurich Switzerland Trees were sampled in area of 11 km x 5.8 km Site: Elevation 2930 - 3320 m Reference: Bigler, C., D.G. Gavin, C. Gunning, and T.T. Veblen. 2007. Drought induces lagged tree mortality in a subalpine forest in the Rocky Mountains. Oikos 116:1983-1994. COFECHA output: Chronology file name : CO633.CRN Measurement file name : CO633.RWL Date checked : 26JUL07 Checked by : B. Bauer Beginning year : 1552 Ending year : 2003 Principal investigators: Christof Bigler Thomas T. Veblen Site name : Cameron Pass Site location : Colorado Species information : PCEN ENGELMANN SPRUCE Latitude : 4033 Longitude : -10550 Elevation : 3100M Series intercorrelation: 0.555 Avg mean sensitivity : 0.168 Avg standard deviation : 0.018 Avg autocorrelation : 0.863 Number dated series : 16 Segment length tested : 50 Number problem segments: 4 Pct problem segments : 1.54 PART 5: CORRELATION OF SERIES BY SEGMENTS: Cameron Pass Spruce 15:39 Thu 26 Jul 2007 Page 5 ----------------------------------------------------------------------------------------------------------------------------------- Correlations of 50-year dated segments, lagged 25 years Flags: A = correlation under .3281 but highest as dated; B = correlation higher at other than dated position Seq Series Time_span 1550 1575 1600 1625 1650 1675 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1975 1599 1624 1649 1674 1699 1724 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 C043006 1590 2003 .46 .54 .61 .59 .58 .57 .56 .58 .40 .31A .65 .79 .62 .61 .61 .65 .64 2 C043072 1710 2003 .53 .64 .63 .48 .64 .76 .74 .73 .68 .48 .52 .47 3 C043294 1552 2003 .33 .38 .47 .35 .35 .55 .33 .51 .57 .51 .68 .78 .77 .75 .75 .70 .65 .60 4 C043300 1712 2003 .54 .68 .57 .50 .64 .81 .75 .61 .64 .51 .45 .38 5 C043372 1570 2003 .42 .48 .49 .41 .29A .34 .50 .51 .48 .43 .62 .61 .50 .52 .51 .38 .50 .46 6 C044004 1576 2003 .47 .49 .56 .65 .54 .52 .62 .61 .42 .57 .58 .45 .62 .63 .49 .51 .43 7 C044008 1595 2003 .65 .70 .67 .52 .62 .64 .54 .42 .39 .56 .79 .69 .57 .58 .41 .39 .37 8 C044036 1597 2003 .47 .48 .52 .39 .31A .46 .66 .71 .48 .56 .76 .72 .69 .67 .54 .41 .33 9 C044074 1680 2003 .51 .58 .56 .53 .53 .57 .63 .61 .59 .56 .50 .41 .35 10 C044082 1577 2003 .41 .64 .63 .51 .58 .61 .68 .71 .70 .56 .55 .61 .53 .50 .61 .52 .50 11 C044096 1570 2003 .41 .47 .52 .50 .60 .53 .48 .51 .44 .49 .66 .56 .46 .65 .63 .49 .43 .35 12 C044126 1619 2003 .52 .55 .54 .56 .53 .55 .64 .61 .58 .57 .47 .66 .63 .49 .57 .52 13 C044132 1571 2003 .42 .36 .34 .41 .46 .59 .58 .55 .64 .66 .61 .78 .79 .57 .53 .53 .56 .58 14 C044138 1629 2003 .43 .45 .49 .63 .57 .49 .51 .52 .68 .78 .57 .40 .35 .51 .53 15 C044146 1578 2003 .50 .54 .53 .59 .43 .32B .59 .66 .42 .46 .73 .77 .67 .65 .56 .44 .39 16 C044154 1556 2003 .45 .49 .58 .51 .49 .67 .68 .75 .77 .60 .71 .90 .82 .77 .72 .45 .44 .41 Av segment correlation .41 .47 .53 .51 .49 .52 .53 .59 .59 .51 .58 .70 .67 .63 .61 .51 .50 .46 PART 7: DESCRIPTIVE STATISTICS: Cameron Pass Spruce 15:39 Thu 26 Jul 2007 Page 10 ----------------------------------------------------------------------------------------------------------------------------------- Corr //-------- Unfiltered --------\\ //---- Filtered -----\\ No. No. No. with Mean Max Std Auto Mean Max Std Auto AR Seq Series Interval Years Segmt Flags Master msmt msmt dev corr sens value dev corr () --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- 1 C043006 1590 2003 414 17 1 .564 .05 .13 .023 .882 .160 2.70 .364 -.025 2 2 C043072 1710 2003 294 12 0 .635 .03 .16 .032 .962 .210 2.57 .321 -.034 1 3 C043294 1552 2003 452 18 0 .531 .04 .16 .015 .854 .142 2.55 .325 -.040 1 4 C043300 1712 2003 292 12 0 .599 .06 .12 .023 .827 .167 2.60 .340 -.051 1 5 C043372 1570 2003 434 18 1 .477 .04 .11 .019 .877 .189 2.68 .310 -.025 2 6 C044004 1576 2003 428 17 0 .539 .05 .10 .014 .710 .181 2.55 .341 -.036 1 7 C044008 1595 2003 409 17 0 .562 .04 .09 .016 .903 .139 2.62 .360 -.012 4 8 C044036 1597 2003 407 17 1 .549 .03 .08 .011 .800 .189 2.71 .433 -.010 1 9 C044074 1680 2003 324 13 0 .537 .03 .10 .013 .857 .167 2.60 .356 -.024 1 10 C044082 1577 2003 427 17 0 .555 .04 .12 .018 .874 .200 2.83 .373 -.060 1 11 C044096 1570 2003 434 18 0 .506 .03 .07 .011 .838 .171 2.70 .367 .015 1 12 C044126 1619 2003 385 16 0 .562 .04 .09 .019 .921 .160 2.61 .352 -.015 2 13 C044132 1571 2003 433 18 0 .558 .06 .20 .027 .910 .155 2.57 .316 -.015 1 14 C044138 1629 2003 375 15 0 .539 .03 .08 .011 .863 .152 3.01 .394 -.029 1 15 C044146 1578 2003 426 17 1 .554 .03 .11 .018 .936 .163 2.59 .395 -.021 3 16 C044154 1556 2003 448 18 0 .640 .05 .11 .019 .821 .154 2.53 .301 -.025 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 6382 260 4 .555 .04 .20 .018 .863 .168 3.01 .353 -.025